Curlew, IA has a population of 73 and is the 27,583rd largest city in the United States. The population density is 96 per sq mi which is 76% higher than the Iowa average and 6% higher than the national average. The median age in Curlew is 42 which is approximately 11% higher than the Iowa average of 38. In Curlew, 62% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 67% of Curlew residents were born in Iowa, 33% were born out of state, 0% were born outside of the United States and 0% were foreign born.